Hi team
Some time this question may not ideal for this forum
I found a resistor it color code is Green Brown Red Gold
It valve is 5.1K
My question is
What is the E stranded that resistor to be included
As I know 5.1K resistor can not be under E12 Standard
Please advise
Thanks in advanced
Moved to General Electronics....Your post wasn't related to Emergency Response.
E24
That mean E24 resisters can be represented by 4 band right ?
Please advise
Only three bands are needed for the value of a E12 or E24 resistor.
Two for the digits and a band for the multiplier (number of zeroes).
The fourth optional band is tolerance.
Silver, gold or a fourth colour. Brown (1%) is now common.
Leo..
That mean we can not identify the E series slandered by locking at the color band
Usually E12 series resistors are 10% tolerance (silver) and E24 series resistors are 5% ( gold).
Thanks for advise
Can you please point out how to separate E12 and E24 resistor by locking at the resistor color code
Why do you want to?
Half of E24 values are also values of E12. If the value is not part of the E12 series, it must be E24, but if it is part of both series you cannot distinguish - and I see no reason why I should.
Let's suppose there are two 100ohms resistors in the box one of them are E12 and other is E24 , how may is identify separately
Like MicroBahner says, no difference.
A 100ohm resistor is a 100ohm resistor. The physical difference may be the tolerance and/or the wattage. But you can assign it to E12 or E24 - that's no difference and doesn't matter when using it. I still don't know what your point is.
I am sorry some time fault is my side
I just remember............. I think we can separate it by tolerance band ...Am I right ?
Because first three band are same of both E12 and E24 100ohms resistor
No, you can't.
E12 series just has less steps over the full range than E24.
So usually you can use E12 (which are produced at very large scale and thus cheap). Sometimes you need a value that is not in E12. Then you can look in E24 series, or even E48 or E96. The resistors in the latter series will usually be high precision (it does not make sense to buy a 110 ohm resistor instead of 100ohm if the accuracy is only 10%...). But nowadays, resistors are often within a few percent (even if it has a gold band). If you want an exact 100 ohm: just take 10 out of a bag and measure...). E96 will be more expensive and may not be on stock in regular electronics stores.
Still my problem is not solved
My problem is .. How we physically identify the resistor is E12 series and E24 series
You cannot...
It is like having all integers in one bag and al even numbers in another.
Mix them together.
Pick one. It is a two. From which bag did it come?
If the resistor values are the same, why would you want to ?
The resistor values can be same accordant to color band but tolerance is different
Then how we replace the resistor during repair
The tolerance band tells you what the tolerance is.